Power-supply unit



FIG. 1 is a front perspective view of a power-supply unit showing my newdesign;

FIG. 2 is a back perspective view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a top view thereof;

FIG. 6 is a bottom view thereof;

FIG. 7 is a right side view thereof;

FIG. 8 is a left side view thereof; and,

FIG. 9 is a perspective view thereof, wherein a cover is opened.

The broken lines shown are for illustrative purposes and form no part ofthe claimed design.

The ornamental design for a power-supply unit, as shown and described.